Buy With Prime on Shopify: Pros, Cons, and Fees

Should you put Amazon's Prime badge on your own store?

Here's my short answer on Buy with Prime Shopify setups. It's worth testing if you already keep inventory in Amazon's warehouses, your product sells for $30 or more, and your page already converts. It's a bad fix for a page that can't sell. You pay a 3% Prime service fee per order (minimum $0.30) plus Amazon fulfillment starting at $5.60 a unit, and in return Prime members get a button they trust, fast free delivery and free returns. Amazon says that lifts revenue per visitor by 16% on average. That's Amazon's number, and I'll show you exactly what it measures.

I've been suspended by Amazon before. Five days of $0 while they "reviewed" my account. So when Amazon offers to sit on my own checkout, I read the fine print twice.

Here's the fine print.

What is Buy with Prime on Shopify, and how does it work?

Buy with Prime puts a Prime button on your Shopify product pages. A Prime member clicks it, pays with the card already saved in their Amazon account, and gets Prime delivery and returns. Amazon picks, packs and ships the order from its fulfillment centers.

The part most founders miss: since Shopify and Amazon ended their standoff in 2023, the order runs through your own Shopify checkout. Amazon's Buy with Prime app announcement says shoppers "experience your online store's existing Shopify checkout flow," Shopify Payments processes the payment, and your gift cards and promotions still work. Before that deal, Modern Retail reported that Shopify warned merchants the old setup broke its checkout terms, and merchants struggled to track Prime orders against Shopify orders.

Today the listing is called Amazon MCF and Buy with Prime in the Shopify App Store. When I opened it this week it showed 3.6 stars from 98 reviews, free to install, pay as you go. The recent complaints were about inventory sync: stock showing as sold out when it isn't. That's a real cost if your hero product goes dark for a weekend.

The Prime badge is borrowed trust. It works because shoppers already trust Amazon. It doesn't make them trust your product.

What are the Buy with Prime fees in 2026?

Fees change often, so every line below comes from Amazon's own pages, opened on October 5, 2026.

Fee	What Amazon charges	On a hypothetical $40 single-unit order
Prime service fee	3% of order value, $0.30 minimum (pricing)	$1.20
Fulfillment fee	Starting at $5.60 per unit	$5.60
Fuel and logistics surcharge	3.5% of fulfillment fees, on Buy with Prime since May 2, 2026 (announcement)	about $0.20
Holiday peak fee	Averages $0.32 per unit, October 15, 2026 to January 14, 2027, surcharge on top (announcement)	about $0.33 in peak season
Storage	$0.78 per cubic foot per month	depends on your product's size
Payment processing	Shopify Payments rates still apply	your normal rate
Referral fee	None	$0

Here's the math on that $40 order. $1.20 plus $5.60 plus $0.20 is $7.00 to Amazon outside peak season. In peak season it's $7.33. That's 17.5% of the order, rising to 18.3% between October 15 and January 14.

Two honest caveats. "Starting at $5.60" is the smallest size tier, so a heavier product pays more. And Amazon's pricing page doesn't say whether that $5.60 already includes the surcharge, so treat the $0.20 as a ceiling. If you want the bigger picture on this year's fee stack, I broke it down in the 2026 Amazon FBA fee changes. Tariffs are the other cost moving under your price this year, and I laid out how to measure what competitors did about them in tariff impact on ecommerce prices.

One more thing on the pricing page: Amazon says 2026 fulfillment fees rose an average of $0.24 a unit, but stayed flat for orders of 3 or more units in standard sizes. That's a quiet nudge toward bundles.

Does the Prime badge on Shopify actually lift conversion?

Amazon says yes, and it has said so with two different numbers.

In 2023, Amazon's own Shopify app post claimed Buy with Prime increased shopper conversion by 25% on average. Today, the Buy with Prime homepage claims a 16% average increase in revenue per visitor, and its footnote says that comes from A/B tests with 167 merchants between July 2023 and June 2024, comparing Buy with Prime available versus not available.

I actually like the second number more. Revenue per visitor is the right scoreboard. It's your conversion rate times your average order value, and it catches a button that lifts orders but shrinks basket size.

But read it like a founder. It's an average. Amazon picked the 167 merchants. And the brands that get Prime-level fulfillment usually already had a product people wanted. Independent coverage is quieter: Marketplace Pulse called the lift anecdotal and noted that, two years in, adoption was still small because brands have to keep inventory in Amazon warehouses.

So run the math on a store like this, a hypothetical. A $40 product, 10,000 visitors a month, a 2.0% conversion rate, a $40 average order value. That means revenue per visitor is $0.80. On 10,000 visitors, that's $8,000.

Give it Amazon's claimed 16% lift and revenue per visitor becomes $0.928. On the same 10,000 visitors, that's $9,280. An extra $1,280 a month, if your store behaves like Amazon's average.

Now rebuild the page instead. Conversion rate from 2.0% to 3.0%, average order value from $40 to $52 with a bundle. Revenue per visitor: $1.56. On 10,000 visitors, that's $15,600.

Today $8,000

With the Prime badge (Amazon's claim) $9,280

After a page rebuild $15,600

Today: 2.0% x $40. Prime badge: Amazon's claimed 16% average lift applied. Page rebuild: 3.0% x $52. All three are hypothetical.

The badge adds a floor. The page sets the ceiling.

What are the real cons of Buy with Prime?

The fees are the part you can calculate. These are the parts you can't.

Your inventory splits. Amazon's app requirements say you must send products to Amazon fulfillment centers and use Multi-Channel Fulfillment. Amazon treats that stock as one pool for Amazon.com and your site. A Prime Day spike on Amazon can drain the units your store was counting on.

Your setup gets rules. You need a standard Liquid theme (no headless storefronts), an order system that handles split shipping, a Professional Seller Central account, and no shipping scripts that change rates. Shopify's help center adds: US-based store, US dollars, domestic US shipping, Shopify Payments with Amazon Pay switched on.

Returns follow Amazon's playbook. Shopify says Buy with Prime automates refunds inside the free return window. Easy for the shopper. Less room for you to save the sale with an exchange.

The data is shared. The good news: orders sync into your Shopify admin with a Buy with Prime tag, so you keep the customer. The catch: Amazon's Buy with Prime privacy notice says it can use shopper information to "market and promote" its own services and those of its affiliates to that shopper. Your best customer is now on Amazon's list too.

A Prime member who buys on your site is still Amazon's customer first. Make sure your post-purchase flow gives them a reason to come back to you, not to the app on their phone.

When is Buy with Prime worth it, and when should you skip it?

Here's how I'd call it.

Your situation	Buy with Prime?	Why
Already on FBA, product $30+, page converting at 2%+	Test it	Inventory is already there, and a 3% fee on a $40+ order is small next to a real lift
Already on FBA, page converting under 1%	Fix the page first	A 16% lift on a weak page is still a weak page
Not on Amazon, own 3PL, happy with delivery times	Probably skip	You'd split inventory and add a Seller Central account to buy a badge
Low-price product, under $20	Run the numbers hard	Fulfillment from $5.60 plus surcharge eats a bigger slice of a small order
Store outside the US or selling in other currencies	Not available	Shopify requires a US store, US dollars and US shipping
Heavy subscription or custom shipping logic	Check compatibility first	Shipping scripts that change rates aren't allowed

If you sell on both channels, the badge is the obvious move. The question is order of operations. I wrote about why the same product earns more per visitor on Shopify in Shopify vs Amazon revenue per visitor. The badge only multiplies whatever the page already earns.

Here's a real one. A bedding brand we work with went from a 1.0% conversion rate and a $125 average order value, $1.25 per visitor, to a 3.5% conversion rate and a $231 average order value, $8.10 per visitor. On 10,000 visitors, that's $12,500 versus $81,000, a 6.5x lift (see the full case study numbers). Real client numbers, not typical results, and not a promise of what your store will do. No badge did that. The page did.

How do you test Buy with Prime without guessing?

Treat it like any other offer test.

1. Pull 30 days of baseline: conversion rate, average order value and revenue per visitor on the 3 products you'd enable.
2. Turn Buy with Prime on for those 3 products only.
3. Filter orders by the Buy with Prime tag in Shopify and track them separately.
4. After 30 days, compare revenue per visitor, then subtract the extra fees per order versus your current shipping cost.
5. Keep it on only if the gap is positive after fees.

And while you're at it, rewrite the page for the shopper Prime brings you. Amazon shoppers skim, compare and look for proof fast. I covered what that page needs in how to write a Shopify product page for Amazon shoppers. If you're still deciding where Amazon fits in your whole plan, start with the 2026 Amazon selling guide, and see why Amazon sellers are moving their winners to Shopify.

What to do next

Pick your best-selling product. Write down its conversion rate and average order value from the last 30 days, and multiply them. That's your revenue per visitor. If it's under $1, fix the page before you rent the badge. If it's over $1 and you're already on FBA, turn on Buy with Prime for that one product and run the 30-day test above.

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Book Your Profit Audit

Buy with Prime can add a few points on top of a page that already sells, but it can't make a weak page sell. Book a free profit audit and we'll show you what each visitor is worth on your store today, then how to rebuild a high-converting product sales page in less than 15 minutes.

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Or go here to check it out → revenueflows.ai

P.S. The Prime badge is rented trust. A page that answers the buyer's questions is trust you own, and nobody can switch it off.